In September, 1929, Mr. Howard Miller showed the writer a partly exposed tusk which he thought was a petrified log. It was dug out on October 7th, and found to be 6 feet long, 7¾ inches by 6 inches at the big end, and over 5 inches in diameter at the broken end. It lay in the bed of some tiny glacial or post-glacial stream. Most of it fell to fragments when moved. At a point 1½ miles west the author has found 7 proboscidian teeth and some other bones in the present stream bed.
Proceedings of the Iowa Academy of Science
©1930 Iowa Academy of Science, Inc.
"A Large Fragment of Proboscidian Tusk Found near Glenwood, Iowa, and Notes of Similar Finds,"
Proceedings of the Iowa Academy of Science, 37(1), 274-274.
Available at: https://scholarworks.uni.edu/pias/vol37/iss1/60